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The top documents tagged [digital mechanical calculator]
Calculator
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Zero to a Billion in 4.86 Years (A Whirlwind History of Operating Systems)
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History of Computer
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Computer History Marivic S. Manlagnit - JMAMES -ICT Coordinator
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Of. 2 history.ppt 21-Jan-03 People in early times used their fingers and made marks on cave walls to help themselves remember and count. They used STICKS
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